XL Family of Low Phase Noise
Quartz-based PLL Oscillators
XL
Datasheet
Description
Features
▪ Output types: LVDS, LVPECL, LVCMOS
The IDT XL devices (XO and VCXO options) are ultra-precision
crystal oscillators with 750 to 890fs typical phase jitter over 12kHz
to 20MHz bandwidth. Available in a wide frequency range from
0.750MHz to 1350MHz, the XL series crystal oscillators utilize a
family of proprietary ASICs, with a key focus on noise reduction
technologies.
▪ Phase jitter (12kHz to 20MHz): 750fs to 890fs typical
▪ Supply voltage: 2.5V or 3.3V
▪ Package options:
• 3.2 × 2.5 × 1.0 mm (not available for VCXO)
• 5.0 × 3.2 × 1.2 mm
• 7.0 × 5.0 × 1.3 mm
The 3rd order Delta Sigma Modulator reduces noise to the levels
that are comparable to traditional Bulk Quartz and SAW
oscillators. With short lead-time, low cost, low noise, wide
frequency range, excellent ambient performance, the XL devices
are an excellent choice over the conventional technologies. The
XL (XO option) devices have stabilities as tight as ±20ppm and
the XL (VCXO option) devices have ±50ppm APR. Either option
provides extremely quick delivery for both standard and custom
frequencies.
▪ Operating temperature: -20°C to +70°C
• Frequency stability options: ±20, ±25, ±50, or ±100 ppm
(XO only)
• ±50ppm APR (VCXO only)
▪ Operating temperature: -40°C to +85°C
• Frequency stability options: ±25, ±50, or ±100 ppm
(XO only)
• ±50ppm APR (VCXO only)
▪ Operating temperature: -40°C to +105°C (XO only)
• Frequency stability options: ±50 or ±100 ppm
▪ kV of 85ppm/volt typical from 0.5VDC to VDD (VCXO only)
• Better than ±10% linearity for Vc range
Pin Assignments (XO option)
NOTE: To minimize power supply line noise, a 0.01μF bypass capacitor should be placed between VDD (Pin 6) and GND (Pin 3) on 6-pin
devices, or VDD (Pin 4) and GND (Pin 2) on 4-pin devices.
4
1
3
6
1
5
4
2
2
3
Table 1. XO 6-pin Package
Table 2. XO 4-pin Package
Number
Name
Description
Number
Name
Description
[a][b]
[a][b]
1
E/D
NC
Enable/Disable
No connect
1
2
3
4
E/D
GND
OUT
Enable/Disable
Connect to ground
Output
2
NC
E/D
No connect
[a][b]
Enable/Disable
V
Supply voltage
DD
3
4
5
6
GND
OUT
Connect to ground
Output
[a] Pulled high internally.
[b] Low = output disabled.
OUT2
Complementary output
Supply voltage
See Ordering Information (XO) for more details.
V
DD
©2018 Integrated Device Technology, Inc.
1 September 7, 2018